Work-gage.



' L. A. GASGRAIN.

WORK GAGE.

APPLIoATIoN FILED MAY 21, 19m.

1,048,295. Patented Dec.24,1912.

@We W M//UVESSES STATESMFATENT OFFCE.

LOUIS A. CASGRAIN, OF BEVERLY, MASSACHUSETTSJ ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATTERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WORK-GAGE.

Specification of Letters Patent.

Patented Dec. 24,1912.

Original application led March 17, 1906, Serial No. 306,612. Divided and this application led May 21, 1907. Serial No. 374,852.

To cZZ whom it may concern:

Be it known that I, LOUIS A. GASGRAIN, a citizen oit the United States, residing at Beverly, in the county of Essex and Commonwealth oit' Massachusetts, have invented certain Improvements in lVork-Gages, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to work gages suoli as are used in a large variety of machines, including nailing machines, slugging machines and pegging machines, for determining the position of the work being operated upon with reference to the operating devices or tools.

The specific form of gage herein shown and described is particularly designed for use in connection with the machine 'for inserting 'fastenings shown and described in application tor Letters Patent of the United States, Serial No. 306,612, filed by this applicant March 17, 1906, of which the present application is a division.

One of the objects of the present invention is to provide a work gage comprising a member for engaging the work which is movable with relation to the parts of the machine which operate upon the vwork but which will be locked or securely held in any position to which it may be moved.

ln the preferred form of the invention, the means :tor locking the work engaging member in position comprises a plurality of locking devices such, for example, as a pair of roller clutches or clamps which act normally to prevent movement of the work engaging member and means, herein shown as a manually operable member, is provided 'for first unlocking the work engaging member and then moving it to another position. As herein shown, while the work engaging member is free to move in one direction it is still locked against movement in the opposite direction and whenever the means for unlocking the work engaging member becomes inoperative the locking means alitomatically becomes operative so that, as above explained, the work engaging member will be held firmly in place not only in a limited number of predetermined Vpositions but in moved from one to another predetermined position so that rows of fastenings, for example, may be inserted at a predetermined distance from each other and from the edge of the sole of a shoe or other' work.

Accordingly in another aspect, the invention comprises a manually operable means, such, for example, as a hand lever, through which the work engaging member may be moved and coperating stop devices for predetermining at least three positions of the work engaging member. Preferably these parts are so'arranged that the work engaging member may be moved from one predetermined position to any one ot a plurality of other predetermined positions by a single movement of the manually operable means.

In addition to the elements of novelty already specifically mentioned, the present invention also comprises certain arrangements and combinations of parts as well as details of construction which will be hereinafter fully described and defined in the appended claims.

Referring to the drawings-Figure 1 shows, chiefly in side elevation but partly in section, a preferred embodiment of the work gage which constitutes the present invention, together' with certain parts of a machine of which it forms a part and a portion of a shoe upon which the machine is adapted to operate; Fig. 2 is a plan view, upon a somewhat larger' scale, of the work gage shown in Fig. 1 with certain ot the partsV cut away.

As herein shown. the gage is applied to the machine fully described and illustrated in co-pending application Serial No. 306,612, above referred to, the same parts being designated by the same reference characters in the two applications. It will be understood, however, that the Work gage of the present application, while shown as used in connection with the machine of the earlier application, may be, without substantial change, applied to many other machines in which it is desired to have a work gage- The reference numeral 2 represents a part of the frame of the machine. The work, shown as a portion of a shoe, is clamped between the work support or horn 30 and the presser foot 93. The edge of the sole is engaged by a member 230 of the work gage, shown as a wheel or disk provided with a roughened or serrated periphery and rotatably supported upon a bar or slide 238 by a stud 239, the slide being movable longitudinally in the supporting arm or bracket 240.

As fully explained in the original application above mentioned, mechanism may be provided for rotating the work engaging member 230 in order to feed the work. As herein shown, this mechanism includes a lever 241 actuated from the main shaft of the machine which is adjustably connected to the work engaging member 230 by a link 246. JAccording to the invention herein claimed, however, it is immaterial whether or not the work engaging member serves simply as a gage or whether it also forms part of the means for feeding the work. The work engaging member may comprise merely a freely rotatable wheel or roll, the end of a bar such as bar 238, or any other suitable device adapted to bear against some part of the work.

The specific mechanism, illustrated, for adjusting the Work gage and for locking it in adjusted position will now be described. The bar 238 is cut away on one side for about half of its width to receive a clutch block 250 which is adjustably connected to the bar by a thumb screw 251, a spring 251 being interposed between the bar and block to take up any backlash. The clutch block 250 is also cut away on one side and has two oppositely inclined surfaces 255. A clutching roll 256 is interposed between each of the inclined surfaces and the adjacent wear plate 257 forming part of the wall of the slot or opening in lever 240 and is normally forced by a spring 258 into the narrower end of the tapering space formed between said .surface and plate. The block 250, the bar 238, and the wheel 230 are thus locked by the clutching rolls 256 in any posit-ion whatever to which they be moved. Each of the rolls may be moved toward the wider end of the tapering space in which it lies, when it is desired to adjust the gage, by one of two pins 259 slidable in block 250 and in position tobe engaged by one end of a lever 26() pivoted upon an extension 261 of lever 240. The end of lever 260 passes through a slot 262 in the side of the enlarged end of lever 240 in which the bar 238 and clutch block 250 slide and extends into a pocket in the block between the adit lies and carries with it the block 250 and,

therefore, the work engaging member 230. Vhen the movementof the lever is stopped the released clutching roll 256 1s again 'moved b 7 its sarino' 258 into lockino osi- 5 s :D l)

tion and the gage is then held firmly in its new position.

It will be noted that, after the screw 251 has been adjusted as desired and while the machine is in operation, the clutch block 250 is positively connected to the bar 238 and therefore is, in effect., an integral part of the bar so far as the operation of the work gage is concerned and indeed, if the provision of this adjustment through the screw 251 is not desired, the block 250 may in fact form an integral part of the bar 238.

In many classes of machines, it is often desirable, as above explained, to move the gage quickly into any one of two o-r more predetermined positions, thereby varying correspondingly the distance from the edge of the work at which fastenings will be inserted. To this end, the lever 260 has on one arm a projection 263 provided with a recess 264. This projection is held by a spring 265 in engagement with a cam surface of a T-shaped lever 267 pivoted on the extension 261 of lever 240. As illustrated, this cam surface is made up of two outwardly-inclined surfaces 268, which meet in an edge adapted to rest in the recess 264.

Then the lever 267 is in this central posi-A tion the gage wheel 230 is in its forward position, so that the fastenings will be inserted nearest the edge of the work. If the operator wishes to retract the gage, he moves lever 267 from its central position. The cooperation of the projection 263 with one of the surfaces 268 permits lever 260 to be moved by its spring 265. This movement is limited by the engagement of one of two adjust-able stop screws 269 in the head of lever 267 with a fixed stop 270 on extension 261. If the two inclined surfaces, the two cooperating sides of projection 263, and the adjustment of the two screws 269, are all respectively alike, as shown, then the gage will be retracted substantially the same distance when lever 267 is moved to both extreme positions. However, the stop screws 269 may be adjusted to vary the positions that the gage will take when the lever 267 is moved in either direction laterally from its cent-ral position, thus giving three predetermined positions to which the gage may be quickly and readily moved. A similar result would be accomplished by making the two surfaces 268 of different shape. More over, as above described, the gage may be independently adjusted by rotation of thumbscrew 251.

The lever or arm 24() is supported so that the gage may be adjusted vertically. For this purpose, the rear end of the lever is provided with a three point bearing. The lever has two similar feet 274. The toe 275 of each foot bears directly against a part ot the machine 'frame while through the web 276, which connects the feet, passes an ad justing screw 277 bearing against another part of the frame. A headed screw 278, passing somewhat loosely through a part ot the trame 2, is threaded into each foot, serving to clamp the foot of the lever tirmly to the frame. Hence the height ot the gage may be regulated by loosening screws Q78, if necessary, adjusting screw 277 and then tightening up screws 278.

It is believed that the manner of operating the work gage has already been set torth fully and clearly in the description ot its various parts. The scope of the invention, also, has been indicated andV will also be found defined in the claims.

Having thus described my invention in detail, what I claim as new and desire to secure by Letters Patent ot the United States is:-

1. in a machine ot the class described, the combination with a work gage comprising a work engaging member movable to change the position of work, of means t'or positively locking it in any position to which it may be moved, and means for unlocking said. member and for thereafter engaging a part fixed relatively to said member for moving it to a new position.

2. In a machine of the class described, having Yfastening inserting and work snppcrting mechanism, the combination of means for locating the edge o'l the work at any desired distance from the line in which tastenings are to be inserted comprising a work engaging member, means lor locking it in position, and means Y[for tirst unlocking said member and thcreattcr directly engaging a part lixed relatively to said member and moving it to another position, said loeking means becoming operative automatically whenever the unlocking means becomes inoperative.

3. A work gage comprising a work engaging member movable to change the position of work, a carrier rigidly connected with said member, locking` means acting normally to prevent movement of said carrier, and means for first releasing the locking means and thereafter directly engaging a fixed part of the carrier for moving said member to a new position.

4. A work gage comprising a work engaging member movable to change the position et work, a recessed carrier rigidly connected with 'said member, a plurality of roller clutches acting normally to prevent movement of said Harrier, and movable means extending into a recess in the carrier constructed and arranged first to release a clutch and thereafter to directly engage a tixcd part of said farrier for moving the work engaging member into a new position.

A. work gage comprising a fixed guide, a slide rectilinearly movable therein, a work engaging member carried by the slide, a plurality ot locking devices to lock the slide rigidly to the guide, and a lever for releasing either device and for moving the said member either forwardly or backwardly.

G. A work gage comprising a Afixed guide, a slide movable therein, a work engaging member carried by and rigid with the slide, a plurality of roller clutchesto lock the slide rigidly to the guide, Vand a device located between the clutches constructed and ar- 1anged so that when moved in either direction it will first release one of the clutches and thereafter directly engage a part rigid with the slide and move the work engaging member to a new position.

7. A work gage comprising a slide, a work engaging member carried by and rigid with the slide, a support in which the slide is guided. a pair of roller clutches acting normally to lock the slide rigidly to its support or guide, and a lever movable in opposite directions first to release one or the other ot the clutches and thereafter to directly en gage a part rigid with the slide to change the position of the work engaging member.

8. In a machine -for inserting fastenings, the combination of means -for locating the edge of the work at any desired distance 'trom a line in which 'fastenings are to be inserted comprising a \\'orl -engagi1ig member, independent means for locking it against movement in opposite directions, manually operable means including a lever provided with adjustable stops through which said member may be moved, and relatively stationary stops cooperating with the movable stops for predetermining certain positions ot' said member.

9. In a machine 'for inserting astenings, the combination of means for locating the edge of the work at any desired distance from a line in which fastenings are to be inserted comprising a work engaging member, manually operable means including a lever provided with adjustable stops through which said member may be moved, and relatively stationary stops coperating with the movable stops for predetermining certain positions ot said member.

10. A work gage comprising a work engaging member movable to change the position of work, a lever through which it may be moved, manually operable means for actuating said lever, and coperating stop devices for predetermining three position's of said member, the stop devices for predetermining one of said positions being located upon adjacent surfaces of said lever and manually operable means.

11. A work gage comprising a work engaging member, a lever through which it may be moved, and a manually controlled self-locking lever coperating with the firstment-ioned lever and constructed to carry the work engaging member from one predetermined position to any one of a plurality of other predetermined positions by a single movement.

12. A work gage comprising a work engaging member, a lever through which it may be moved, independently supported manually controlled means coperating with the lever for moving the work engaging member to any one of three predetermined positions, and adjusting means for varying each of such positions.

18. A work gage comprising a work engaging member, a lever through which it may be moved, a manually operable lever, said levers having cooperating relatively movable cam surfaces by which the positions of the work engaging member are determined.

1A. A machine frame and a work gage supported thereon comprising a work engaging member, a supporting arm or bracket provided with three separate bearing points to engage the frame, and means for securing it rigidly to the frame, including means for adjusting it so as to vary the position vertically of the work engaging member.

15. A work gage comprising a work engaging member, a lever through which it may be moved, a manually operable lever, said levers having cooperating relatively movable cam surfaces by which two positions of the work engaging member are determined, and one of said levers having a notch and the other a cooperating projection located between said cam surfaces by which the third position of said member is determined.

16. A work gage comprising a work engaging member, a lever through which it may be moved, a manually operable lever, said levers having coperating relatively movable cam surfaces by which two positions of the work engaging member are determined, and one of said levers having a notch and the other a cooperating projection located between said cam surfaces by which the third position of said member is determined, and adjustable coperative stop devices for varying the position of said manually operable lever.

17. A device of the class described comprising a fixed member provided with a guide, a slide arranged for rectilinear move ment in the guide and carrying a work engaging member, a plurality of locking devices to lock the slide rigidly to the guide, and a lever for releasing either device and for thereafter directly engaging said slide and moving said member either forwardly or backwardly.

18. A device of the class described comprising a fixed member provided with a guide, a slide arranged for movement in the guide and carrying a work-engaging member, a locking device to lock the slide rigidly to the guide, and a lever for releasing the locking'device and for thereafter engaging a portion of said slide in line with said device and moving said member to a different position.

19. A work gage comprising a work engaging member, a lever having connection y with said member, a spring acting on said lever to effect a normal retraction of said member and a manually controlled lever provided with adjustable stop devices and arranged to be positioned for variably controlling the amount of movement imparted to the work engaging member by said spring.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS A. CASGRAIN.

Witnesses:

FREDERICK L. EDMANDS, M. LOUISE STEUTERMANN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

